The Pomo are a Native American people of California. Historical Pomo territory in Northern California was large, bordered by the Pacific Coast to the west, extending inland to Clear Lake, mainly betwe
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7197592ddb0cce2698e8875e17b5919d4e20aa8407991653437bc3f4b885b023. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb391071-310a-430f-a402-70adb2413175.json and https://artists.proofprofile.net/proofs/artist/fb391071-310a-430f-a402-70adb2413175.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc2ad4923e819b7c3faf4ba3310f572feafdcd4df58e00779d0ff6eca82776d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS11203007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494e9fc41c3804206d40022a754b80f10346676ebf127c2c3bb65920caa36e10. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS11203008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1dd251a2cdf63e49c8ddc58db6f338950489a589b89fbf3449b9dcd5251c71. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS11203009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78db64cce18e8fa9f734bbba33d527c7437d35d6359364950b55921cc3ca48b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS11203010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fbf8e479bc2fce5ce307c93436ac661ca0efaf1b30eb126fd8505f31f951cc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS11203011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a9401b1520757161fcc6af35f3ea7dab806d7033798d8db9dafa747757840b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS11203012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d54b4a55ce2ac6512cf445e15774ee231db3ab42196c763f6b853b9b5bf47b2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS11203013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721d7f1bc244c292a010fd9f993cfb0fe21be1af4234e1de0a50a051a2942833. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS11203014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2b4515d6c4dc99723b26fe49e896481166a71850315009733d740083cbc416. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAN112400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f03569ceb8429336f65c00afb1e191da0257ca48cb5bbc99142f8b3ff963a9. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAN112301900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1811ab1cc8810154e85d3cfa0690970ec086606fc7548a92690165d45592a371. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAN112301584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bad0f56dca88cdeeed9ded08a7dbeab1640a9fdd18c549ceb41392fac5e7c87. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS12100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5f491984492e069d3001a23e4775836c68c1ff73527c615504fa7798872823. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS11800214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d91662996ea9db130489a8bdf9297cdd7a6f7dc5587735985a6a4f375cb400b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS11700153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419a1746522c8f127e57ef4976e52992ff649da302c53c73f5b0fa56d585c4e0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGC61600534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b29b288f0f2d8b55f47c404169eb18c7cfb58af39aae4c88d01de7671a5b7f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGC61600535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07947db708e4404ae001d7628e78f241b87a23a39be01664719ee7a48f0a3c8b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUFF01600862.
And After That, We Didn't Talk - The Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f57fe83f70e289d325dfc64f7316b9ff4432000daa208c47b7cea42de73dec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11601186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd412cc5074431cd4961062fd7e8f9aebc10f99f4fc90934de80fed4d1aabceba. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71406707.